Release v2.0.0

Change-Id: Ice785cf0532fbb031c6f1f1424df4cec4b4716f0
diff --git a/containers/chameleon/Dockerfile.chameleon b/containers/chameleon/Dockerfile.chameleon
index 4aeaade..5fc21f3 100644
--- a/containers/chameleon/Dockerfile.chameleon
+++ b/containers/chameleon/Dockerfile.chameleon
@@ -13,7 +13,7 @@
 # limitations under the License.
 
 # xosproject/chameleon
-FROM xosproject/xos-base:candidate
+FROM xosproject/xos-base:2.0.0
 
 # xos-base already has protoc and dependencies installed